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row elimination problem.

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Anurag Gupta
Anurag Gupta 19 Oct 2020
편집: madhan ravi 19 Oct 2020
Hey
I have a matrix A of 34x2 double.
I want to eliminate the rows wherein the value of both the columns is 0.

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채택된 답변

madhan ravi
madhan ravi 19 Oct 2020
A(all(A == 0, 2), :) = [ ]

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Anurag Gupta
Anurag Gupta 19 Oct 2020
it is not returning me a A as a matrix, it is getting converted to a vector.
madhan ravi
madhan ravi 19 Oct 2020
What?
>> A = [1,2; 0,0]
A(all(A == 0, 2), :) = [ ]
A =
1 2
0 0
A =
1 2
>>
Anurag Gupta
Anurag Gupta 19 Oct 2020
Hello Madhan,
Extremely sorry I actually made an error earlier in the loop which lead to me not getting the right answer. Thanks a lot for the solution. It worked perfectly.
Regards,
Anurag Gupta

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추가 답변(1개)

Asad (Mehrzad)  Khoddam
A(all(A(:,1:2)==0,2),:)=[];

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madhan ravi
madhan ravi 19 Oct 2020
How’s this different from my answer?
Asad (Mehrzad)  Khoddam
I didn't refresh the web page and the time I submitted the answer, there was no anwser to this question.

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